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Patent Application: Intrathecal T regulatory cells for Multiple Sclerosis Treatment

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Published December 3rd, 2025
Detected March 26th, 2026
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Summary

The USPTO has published a patent application (US20260083664A1) for a medicinal product involving intrathecal administration of T regulatory cells for treating multiple sclerosis. The application was filed on December 3, 2025, by inventors Piotr Trzonkowski and Kamil Chwojnicki.

What changed

This document is a published patent application from the USPTO detailing a novel treatment for multiple sclerosis. The application, US20260083664A1, describes a medicinal product comprising specific T regulatory cells (CD3+CD4+CD25+CD127−) administered intrathecally.

While this is a patent application and not a regulatory rule, it signifies potential future developments in pharmaceutical treatments. Companies in the pharmaceutical and biotechnology sectors involved in neurology or immunology research may find this application of interest for competitive intelligence or potential licensing opportunities. No immediate compliance actions are required for regulated entities based on this filing.

Source document (simplified)

← USPTO Patent Applications

INTRATHECAL ADMINISTRATION OF T REGULATORY CELLS IN THE TREATMENT OF MULTIPLE SCLEROSIS

Application US20260083664A1 Kind: A1 Mar 26, 2026

Inventors

Piotr TRZONKOWSKI, Kamil CHWOJNICKI

Abstract

The invention relates to the medicinal product consisting of CD3+CD4+CD25+CD127− T regulatory cells administered intrathecally in the treatment of multiple sclerosis.

CPC Classifications

A61K 9/0019 A61K 40/11 A61K 40/22 A61K 40/416 A61P 25/00 C12N 5/0637 A61K 2239/31

Filing Date

2025-12-03

Application No.

19407506

View original document →

Classification

Agency
USPTO
Published
December 3rd, 2025
Instrument
Notice
Legal weight
Non-binding
Stage
Draft
Change scope
Minor
Document ID
US20260083664A1

Who this affects

Applies to
Drug manufacturers Pharmaceutical companies Healthcare providers
Industry sector
3254 Pharmaceutical Manufacturing 3345 Medical Device Manufacturing
Activity scope
Drug Development Medical Treatment
Geographic scope
United States US

Taxonomy

Primary area
Pharmaceuticals
Operational domain
Legal
Compliance frameworks
FDA 21 CFR Part 11 GxP
Topics
Medical Devices Healthcare

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